KT-656 Convert java.lang.Iterable with full qualified name

src/org/jetbrains/jet/j2k/Converter.java

@@ -286,7 +286,7 @@ public class Converter {
   @NotNull
   private static Function methodToFunction(@NotNull PsiMethod method, boolean notEmpty) {
     final IdentifierImpl identifier = new IdentifierImpl(method.getName());
-    final Type type = typeToType(method.getReturnType());
+    final Type returnType = typeToType(method.getReturnType());
     final Block body = blockToBlock(method.getBody(), notEmpty);
     final Element params = elementToElement(method.getParameterList());
     final List<Element> typeParameters = elementsToElementList(method.getTypeParameters());
@@ -307,7 +307,7 @@ public class Converter {
       return new Constructor(
         identifier,
         modifiers,
-        type,
+        returnType,
         typeParameters,
         params,
         new Block(removeEmpty(body.getStatements()), false),
@@ -317,7 +317,7 @@ public class Converter {
     return new Function(
       identifier,
       modifiers,
-      type,
+      returnType,
       typeParameters,
       params,
       body

src/org/jetbrains/jet/j2k/visitors/TypeVisitor.java

@@ -6,6 +6,7 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.j2k.ast.*;
 import org.jetbrains.jet.j2k.util.AstUtil;
 
+import java.util.Iterator;
 import java.util.LinkedList;
 import java.util.List;
 
@@ -46,12 +47,9 @@ public class TypeVisitor extends PsiTypeVisitor<Type> {
 
   @Override
   public Type visitClassType(PsiClassType classType) {
-    String classTypeName = createQualifiedName(classType);
-    if (classTypeName.isEmpty())
-      classTypeName = getClassTypeName(classType);
-    List<Type> resolvedClassTypeParams = createRawTypesForResolvedReference(classType);
+    final IdentifierImpl identifier = constructClassTypeIdentifier(classType);
+    final List<Type> resolvedClassTypeParams = createRawTypesForResolvedReference(classType);
 
-    final IdentifierImpl identifier = new IdentifierImpl(classTypeName);
     if (classType.getParameterCount() == 0 && resolvedClassTypeParams.size() > 0)
       myResult = new ClassType(identifier, resolvedClassTypeParams);
     else
@@ -59,6 +57,26 @@ public class TypeVisitor extends PsiTypeVisitor<Type> {
     return super.visitClassType(classType);
   }
 
+  @NotNull
+  private static IdentifierImpl constructClassTypeIdentifier(@NotNull PsiClassType classType) {
+    final PsiClass psiClass = classType.resolve();
+    if (psiClass != null) {
+      String qualifiedName = psiClass.getQualifiedName();
+      if (qualifiedName != null) {
+        if (qualifiedName.equals("java.lang.Iterable"))
+          return new IdentifierImpl("java.lang.Iterable");
+        if (qualifiedName.equals("java.util.Iterator"))
+          return new IdentifierImpl("java.util.Iterator");
+      }
+    }
+    final String classTypeName = createQualifiedName(classType);
+
+    if (classTypeName.isEmpty())
+      return new IdentifierImpl(getClassTypeName(classType));
+
+    return new IdentifierImpl(classTypeName);
+  }
+
   @NotNull
   private static String createQualifiedName(@NotNull PsiClassType classType) {
     String classTypeName = "";
@@ -136,3 +154,15 @@ public class TypeVisitor extends PsiTypeVisitor<Type> {
     return super.visitDisjunctionType(disjunctionType);
   }
 }
+
+class Test implements Iterable<String> {
+  @Override
+  public Iterator<String> iterator() {
+    return null;
+  }
+
+  public Iterator<String> push(Iterator<String> i) {
+    Iterator<String> j = i;
+    return j;
+  }
+}

testData/ast/kotlinExclusion/file/kt-656.jav

@@ -0,0 +1,27 @@
+package demo;
+
+import java.util.Iterator;
+
+class Test implements Iterable<String> {
+  @Override
+  public Iterator<String> iterator() {
+    return null;
+  }
+
+  public Iterator<String> push(Iterator<String> i) {
+    Iterator<String> j = i;
+    return j;
+  }
+}
+
+class FullTest implements java.lang.Iterable<String> {
+  @Override
+  public java.util.Iterator<String> iterator() {
+    return null;
+  }
+
+  public java.util.Iterator<String> push(java.util.Iterator<String> i) {
+    java.util.Iterator<String> j = i;
+    return j;
+  }
+}

testData/ast/kotlinExclusion/file/kt-656.kt

@@ -0,0 +1,20 @@
+namespace demo
+import java.util.Iterator
+open class Test() : java.lang.Iterable<String?> {
+override public fun iterator() : java.util.Iterator<String?>? {
+return null
+}
+open public fun push(i : java.util.Iterator<String?>?) : java.util.Iterator<String?>? {
+var j : java.util.Iterator<String?>? = i
+return j
+}
+}
+open class FullTest() : java.lang.Iterable<String?> {
+override public fun iterator() : java.util.Iterator<String?>? {
+return null
+}
+open public fun push(i : java.util.Iterator<String?>?) : java.util.Iterator<String?>? {
+var j : java.util.Iterator<String?>? = i
+return j
+}
+}